October 2013 - Northfield Precision Instrument Corp. introduces the Model 650 Sliding Jaw air chuck. This air chuck, with 0.0001" TIR, has special quick-change jaws and a
hard stop.

This particular custom-made chuck was made for a customer who manufactures output gears and needed to grip on
the interior diameter. Subjaws are permanently mounted to the chuck's master jaws. Quick-Change top jaws are held in place
by one bolt through a keyhole slot in each jaw pad.